江西科学2024，Vol.42Issue(2)：360-365,6.DOI:10.13990/j.issn1001-3679.2024.02.022
基于不同控制图的GNSS异常数据检测方法研究
Research on GNSS Anomaly Data Detection Method Based on Different Control Chart
摘要
Abstract
Control charts are a mature method for detecting mutation points and have been widely used in the detection of anomalous data of coordinate sequences in the Global Navigation Satellite System(GNSS).The article adopts three kinds of widely used control charts,namely cumulative sum control charts,Shewhart control charts,and exponential weighted moving average control charts.Mainly by adding different multiples of standard deviation offsets to GNSS anomaly data for experimentation and comparative analysis,the results show that the CUSUM control charts have higher accuracy for standard deviation offsets of less than 3 times,followed by the EWMA control charts,but the CUSUM control charts can only detect an offset of 0.5 times at minimum.For stand-ard deviation offsets above 3 times,Shewhart and EWMA control charts have similar results,while CUSUM control charts lead to an increase in false positives with increasing offsets.关键词
GNSS/异常数据/CUSUM控制图/Shewhart控制图/EWMA控制图Key words
GNSS/abnormal data/CUSUM control charts/Shewhart control charts/EWMA control charts分类
天文与地球科学引用本文复制引用
何序归,刘超,董亮,孙健飞,樊亚,刘佳祥..基于不同控制图的GNSS异常数据检测方法研究[J].江西科学,2024,42(2):360-365,6.基金项目
安徽省高等学校科学研究重点项目(2022AH050849). （2022AH050849）
